<template>
  <!-- 注册页面的整体盒子 -->
  <div class="reg-container">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <el-form :model="regForm" :rules="regRules" ref="regForm" >
            <el-form-item  prop="username">
                <el-input v-model="regForm.username" placeholder="请输入用户名："></el-input>
            </el-form-item>
             <el-form-item  prop="password">
                <el-input v-model="regForm.password" placeholder="请输入密码："></el-input>
            </el-form-item>
            <el-form-item  prop="repassword">
                <el-input v-model="regForm.repassword" placeholder="请输入密码："></el-input>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" class="zhuce" @click="regNewUser">注册</el-button>
                <!-- 点击事件里面加了this指向事件源 -->
                <el-link type="info" @click="$router.push('/login')">去登录</el-link>
            </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
// 思路：注册页面功能
// 1.渲染注册页面
// 2.正则校验
// 3.点击注册按钮，发送请求，跳转编程式导航跳转至登录页面
export default {
  name: 'Reg',
  data () {
    const samePwd = (rules, value, callback) => {
      if (value !== this.regForm.password) {
        return callback(new Error('两次密码输入不一致'))
      }
      callback()
    }
    return {
      regForm: {
        username: '',
        password: '',
        repassword: ''
      },
      regRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { pattern: /^[a-zA-Z0-9]{1,10}$/, message: '用户名必须是1-10的字母数字', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^[\S]{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' }
        ],
        repassword: [
          { required: true, message: '请再次输入密码', trigger: 'blur' },
          { validator: samePwd, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    regNewUser () {
      //   兜底校验
      this.$refs.regForm.validate(async valid => {
        if (!valid) return
        // 通过就发请求
        const { data: res } = await this.$http.post('/api/reg', this.regForm)
        if (res.code !== 0) {
          return this.$message.error(res.message)
        }
        this.$message.success(res.message)
        this.$router.push('/login')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.zhuce {
    width: 100%;
}
.reg-container {
  background: url('../assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    padding: 0 30px;
    transform: translate(-50%, -50%);

    .title-box {
      height: 60px;
      background: url('../assets/images/login_title.png') center no-repeat;
    }
  }
}
</style>
